光学学报, 2003, 23 (3): 278, 网络出版: 2006-06-27
基于信息理论的采样成像系统匹配设计
Matching Design Methods Based on Information Theory in Sampled Imaging Systems
信息光学 互信息量 熵 欠采样噪声 空间频率响应 information optics mutual information entropy aliasing noise spatial frequency response
摘要
把信息论应用于采样成像系统中,用互信息量评价图像捕捉部分的性能,做出基于信息论的系统评价仿真曲线,提出基于信息论的系统优化设计的指标。根据仿真结果,给出光学成像系统与CCD阵列探测器的宏观匹配特性与最佳匹配条件。图像捕捉实验结果证明了理论分析和仿真结论的正确性。
Abstract
By extending information theory to sampled imaging system, the performance of image gathering device is assessed according to mutual information . Information theory-based computer simulation results are given. Information theory-based design parameters which are used to optimize system are proposed. According to simulation results, the general matching features and ideal matching condition between optical imaging system and CCD detector array are obtained. Experimental results on image gathering verify the result of theoretical analysis and simulations.
迟学芬, 韩昌元, 易志栋. 基于信息理论的采样成像系统匹配设计[J]. 光学学报, 2003, 23(3): 278. 迟学芬, 韩昌元, 易志栋. Matching Design Methods Based on Information Theory in Sampled Imaging Systems[J]. Acta Optica Sinica, 2003, 23(3): 278.